Man shot and killed on SF’s Treasure Island

A Google street view images show the 900 block of Avenue B on Treasure Island where a man in his 30s was shot and killed on Wednesday evening. A Google street view images show the 900 block of Avenue B on Treasure Island where a man in his 30s was shot and killed on Wednesday evening. Photo: Google / / Photo: Google / / Image 1 of / 43 Caption Close Man shot and killed on SF’s Treasure Island 1 / 43 Back to Gallery

A man in his 30s was gunned down on Treasure Island on Wednesday evening and the killer remains at large, police said.

The victim, who has not been identified, was shot and killed on the 900 Block of Avenue B around 5:30 p.m., San Francisco Police Department officials said.

Investigators said a handgun was used in the killing, but no other information was released.

No suspect was identified or arrested in the slaying.

The San Francisco Medical Examiner was working to identify the victim. The circumstances of the slaying were under investigation.

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Evan Sernoffsky is a San Francisco Chronicle staff writer. Email: esernoffsky@sfchronicle.com Twitter: @EvanSernoffsky